Find the number of words of 4 letters that can be formed with the letters of the word IITJEE ?

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Please find below the solution to the asked query:

We have:IITJEEII, EE,T,J1 Words form by letters I,T,J,ENumber of words=4!=242 Words form by I,I,E,ENumber of words=4!2! 2!=244=163 Number of words formed by 2 I and T,J,ENow we have to select two words from T,J,E=3C2Number of words=3C24!2!=3×242=36Similarly:4 Number of words with 2 E and T,J,I=36Number of words=24+6+36+36=102 Answer


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  • 4
6*5*4*3*2*1/4*3*2*1=30 ways.
This is from the topic, Permutations and Combinations.
  • 1
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